Yanbiania

Yanbiania wangqingica

Introduction

†Yanbiania was found in the Early Cretaceous Oil-bearing Member of the Dalazi Formation, Luozigou Basin, northeastern China (Li, 1987, 1997). Recent collecting in the same stratum of deposition, Luozigou Basin, yielded specimens of †Yanbiania wangqingica, †Sinamia luozigouensis Li, 1984 (a Late Mesozoic amiiform), †Manchurichthys uwatokoi Saito, 1936 (a primitive euteleost possibly related to salmoniform fishes, Chang and Liu, 1977), and at least one semionotiform species (under study). Associated with them are mussel-shrimp †Cyprois, and plants in the genera †Pseudofrenelopsis and †Ruffordia.

Characteristics

This fossil hiodontiform differs from all other genera in the order in the following features:

Large parietal bone with an "r-shaped" groove posteriorly on its dorsal surface.

Li, G.-Q. 1987. A new genus of Hiodontidae from Luozigou Basin, east Jilin. Vert. PalAsit., 25: 91-107. (In Chinese with English abstract)

Li, G.-Q. 1997. Notes on the historical biogeography of the Osteoglossomorpha (Teleostei). In: Proceedings of the 30th International Geological Congress. VSP International Science Publishers, Zeist, The Netherlands: 54-66.

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